Answer:
f lamda = c
Explanation:
525 m/s is the speed
A wave has a frequency of 35 Hz and a wavelength of 15 meters, Then the speed of the wave is 525 meters per second(m/s).
What is the speed of the wave?The speed of a wave is the distance that a wave travels per unit of time. It is a measure of how quickly the disturbance created by the wave is propagated through a medium. The speed of a wave can be calculated using the formula:
Speed = Frequency x Wavelength
Where the frequency = is the number of wave cycles per second
wavelength = is the distance between two consecutive points on the wave that is in phase (i.e., at the same point in their oscillation).
The speed of a wave depends on the properties of the medium through which it is traveling, such as its density, elasticity, and temperature.
Here in the question,
Speed = Frequency x Wavelength
Speed = 35 Hz x 15 meters
Speed = 525 meters per second(m/s).
Therefore, the speed of the wave is 525 meters per second.
To learn more about the speed of the wave click:
https://brainly.com/question/10715783
#SPJ2
A thin rod of length 0.75 m and mass 0.42 kg is suspended
freely from one end. It is pulled to one side and then allowed to swing
like a pendulum, passing through its lowest position with angular
speed 4.0 rad/s. Neglecting friction and air resistance, find (a) the
rod's kinetic energy at its lowest position and (b) how far above that
position the center of mass rises.
Answer:
a) K = 0.63 J, b) h = 0.153 m
Explanation:
a) In this exercise we have a physical pendulum since the rod is a material object, the angular velocity is
w² = [tex]\frac{m g d}{I}[/tex]
where d is the distance from the pivot point to the center of mass and I is the moment of inertia.
The rod is a homogeneous body so its center of mass is at the geometric center of the rod.
d = L / 2
the moment of inertia of the rod is the moment of a rod supported at one end
I = ⅓ m L²
we substitute
w = [tex]\sqrt{\frac{mgL}{2} \ \frac{1}{\frac{1}{3} mL^2} }[/tex]
w = [tex]\sqrt{\frac{3}{2} \ \frac{g}{L} }[/tex]
w = [tex]\sqrt{ \frac{3}{2} \ \frac{9.8}{0.75} }[/tex]
w = 4.427 rad / s
an oscillatory system is described by the expression
θ = θ₀ cos (wt + Φ)
the angular velocity is
w = dθ /dt
w = - θ₀ w sin (wt + Ф)
In this exercise, the kinetic energy is requested in the lowest position, in this position the energy is maximum. For this expression to be maximum, the sine function must be equal to ±1
In the exercise it is indicated that at the lowest point the angular velocity is
w = 4.0 rad / s
the kinetic energy is
K = ½ I w²
K = ½ (⅓ m L²) w²
K = 1/6 m L² w²
K = 1/6 0.42 0.75² 4.0²
K = 0.63 J
b) for this part let's use conservation of energy
starting point. Lowest point
Em₀ = K = ½ I w²
final point. Highest point
Em_f = U = m g h
energy is conserved
Em₀ = Em_f
½ I w² = m g h
½ (⅓ m L²) w² = m g h
h = 1/6 L² w² / g
h = 1/6 0.75² 4.0² / 9.8
h = 0.153 m
A child is pushing a merry-go-round. The angle through which the merry-go-round has turned varies with time according to θ(t)=γt+βt3θ(t)=γt+βt3, where γ=γ= 0.450 rad/srad/s and β=β= 1.10×10−2 rad/s3rad/s3. Part A Calculate the angular velocity of the merry-go-round as a function of time. Express your answer in terms of the variables ββ, γγ, and tt. ωz(t)ωz(t) = nothing rad/srad/s SubmitRequest Answer Part B What is the initial value of the angular velocity? ωzωz = nothing rad/srad/s SubmitRequest Answer Part C Calculate the instantaneous value of the angular velocity ωzωz at t=t= 5.25 ss . ωzωz = nothing rad/srad/s SubmitRequest Answer Part D Calculate the average angular velocity ωav−zωav−z for the time interval t=0t=0 to t=t= 5.25 ss .
Answer:
hufiui
fihgpfghlfikgergkfkjhfkhjgkffhhh
Explanation:
jjgzgcjxhgygueyuufhfugkhkckgijljhgxjgjgffhgkgjxhxjgjcjckvjgghkhkgjgjfhfhfhffrusufsflslrsyfhldufñlñudtoqdyhjjxkgsgjfktwlyfñujxjxhlxlhdktstedoyñfuyñflldytidoyeyljjcñcjluffñui5woyepurñfuñufldyrajuñdlydstdyñudñydktshñxjcñydiw5uñfitwoyeoyeñufñfuñifjñufhlsyñeifññydoysitaiwtuñdyñdlsyltslsyoyeylsuñdñjjcyldlyslatlysñudidñjdñfjñjjxlhsmzhmzjjdjdlhdñhjdñjdñjddñhflhuñfhxltkds4urayraylraluarularuñstuñtsuñtsultsuñtsuñstñitsñktssistustlulsrustlularyralultalutslutajltsñgskjlgzljg?g o uguhxputxipyfugxiñhxiñhfuñdguldthgksjmgdjmgkhdjlgdjlgd
pduoyditsyafylrayoraourauptautospustistiptsñitsñitsñitsiptsiteitdustuñtsuñtsñitwiñstñitwñitsñstuuñrsoursurosoustjlsrlutejlgsjlstjfsjlgsultsjgzjñgsññkdylfhkñdgjlfshkadmjgsuñstñkydñkydñiykdhiñstñitsuñtsisñtñtieñietñietñiteñiwtñitskñgsiñteuñwrkñsturaluglsuñtwjlfalfjalhadoyfutdllgdñitswtkgsñktjrajtsurwñwñutiñtsiwñtuwñturqlñitwualtayoryarluarlietite
Two children are sitting on a see-saw, as shown. Calculate the distance the 500-N chid should sit from the fulcrum (pivot) to balance the sew-saw.
We have that for the Question "Calculate the distance the 500-N chid should sit from the fulcrum (pivot) to balance the sew-saw"
It can be said that
The distance = [tex]1.8m[/tex]From the question we are told
weights are = 300 N and 500 N
length l = 6 m
take x distance from the 300 N
total torque is zero
[tex]300*3 = 500x\\\\x = 1.8 m[/tex]
For more information on this visit
https://brainly.com/question/23379286
35. What would a ship's position be if that ship started at
point B and traveled at an average velocity of 35 km/h
west to point D in a time period of 1.2 h?
Answer:
The final position of the ship after the given time period is 42 km West of B.
Explanation:
Given;
average velocity of the ship, v = 35 km/h
time taken for the ship to reach point D, t = 1.2 hours
The position of the ship after the given time period is calculated as follows;
x = v x t
x = (35 km/h) x 1.2 h = 42 km
x = 42 km West of B.
Therefore, the final position of the ship after the given time period is 42 km West of B.
Light with a wavelength of 725 nm passes through the slits of a double-slit experiment. The slits of the experiment are a distance 0.0335 mm apart. What angle does the light make for the third dark fringe?
100 points
Answer:
3.10°
Explanation:
I took the test
Answer:
Explanation:
Angle for the nth dark fringe of light = n * wavelength of light / slit distance
So the angle for the 3rd fringe = 3 * 725 nm / 0.0335 mm
= 3 * 725*10^(-9) / 0.0335*10^(-3)
= 0.0649 rad
= 0.0649 * 360 / 2pi degree
= 3.72 degree
[TG.05H]A geothermal plant has been built in a location. Which of these is the most likely impact of the plant on the location?
depletion of fossil fuels like coal
damage to hot springs and geysers
decrease in average annual temperature
increase in emission of greenhouse gases
The environmental impact that is most likely to occur in an area where there is a geothermal plant is decrease in average annual temperature.
What is a geothermal plant?A geothermal plant makes use of both heat and water in the generation of electricity.
The environmental impact that is most likely to occur in an area where there is a geothermal plant is decrease in average annual temperature.
Learn more about geothermal plant:https://brainly.com/question/27442707
#SPJ2
what is the process that creates wind.
Answer:
Winds are caused by differences in air pressure. Unequal heating of Earth’s surface creates areas of different pressure. Cooler areas have higher air pressure. Warmer areas have lower pressure. This causes air to move from high pressure to low pressure. This movement is the wind we feel.
plz mark me as brainliest.
40 points
Construct an argument based on data about the risks and benefits of renewable and
nonrenewable energy resources.
Answer:
Advantages
Renewable resources will never run out.
Non renewable resources can be recycled and be used for everyday products.
Non renewable resources are easily obtainable.
Non renewable resources are cheaper.
Explanation:
A particle A of mass 2kg originally moving with a velocity of 3ms collides directly with another particles B of mass 2kg moving with a velocity of 2ms in the opposite direction so that the velocity of A become 1ms after impact . Find the velocity of B after the impact.
Answer:
- 1 m/s ( here (-) means the opposite direction of A)
Explanation:
Let m1=2kg, m2=2kg,u1= 3m/s,u2= -2 m/s, v1= 1m/s
m1u1+m2u2= m1v1+m2v2
2×3+2×(-2) = 2×1 + 2x
2= 2(1+x)
x = -1
Hope it helps
can someone help? NO LINKS OR IM REPORTING
Answer:
BjsjsjsiisudujdgjkkgywuuuyyyuwuPeople with schizophrenia are most likely to have delusions that reflect the theme of
Answer:
llogical or bizarre ideas or fantasies.
Explanation:
Why, when building a house, all its walls are laid at the same height at the same time?
Answer:
You now have a foundation to uphold the weight of the rest of the house.
As the Moon revolves around the Earth, it also rotates on its axis. Why is it that the same side of the Moon is always visible from Earth?
Answer: The speed of the moon's rotation keeps the same side always facing Earth.
Explanation: Please mark me brainiest
Answer:
The speed of the Moon's rotation keeps the same side always facing Earth.
Explanation:
got it right on study island :)
The sky diver travels download at a speed of 56m/s for 40s calculate the distance travelled during this time. use the equation distance travelled= speed x time
The visible spectrum of sunlight shows a range of colors from red to violet. This spectrum has numerous dark lines spread throughout it. Noting that the surface of the Sun is much cooler than the interior, so that the surface is comparable to a cool gas through which light passes, which of the following statements correctly explains the dark lines?
a. The cooler, denser surface material scatters certain wavelengths of light, forming dark lines.
b. The atoms at the surface absorb certain wavelengths of light, causing the dark lines at those wavelengths.
c. The atoms in the Sun’s interior emit light of specific wavelength, so that parts of the spectrum are dark.
d. The atoms at the surface are excited by the high interior temperatures, so that the dark lines are merely wavelengths at which those atoms don’t emit energy.
Which choice is an example of an effect of agricultural techniques on the environment? increased oxygen levels in a pond due to fertilizer runoff sediment accumulation in a lake near a farm soil compaction caused by tillage increased plant growth caused by application of herbicides
Answer:
sediment accumulation in a lake near a farm.
Explanation:
In Agriculture, there are various techniques adopted by farmers for the growth and development of their crops. An effective and efficient agricultural technique would have a significant impact on the level of productivity attained by the farmers and as such meeting the unending requirements or needs of the consumers.
There are various agricultural techniques used in farming and these includes;
I. Mixed farming.
II. Arable farming.
III. Pastoral farming.
IV. Bush fallowing.
V. Shifting cultivation.
VI. Nomadic herding.
VII. Subsistence farming.
Generally, these agricultural techniques adopted by farmers has an effect or impact on the environment where it is practiced.
For example, one of such effect on the environment is the accumulation of sediments in a lake near the farm. Thus, this could lead to the formation of new materials such as silt, sand, clay, organic debris, etc., inside the lake.
Answer:
sediment accumulation in a lake near a farm.
Explanation:
A disk has 128 tracks of 32 sectors each, on each surface of eight platters. The disk spins at 3600 RPM and takes 15 ms to move between adjacent tracks. What is the longest time needed to read an arbitrary sector located anywhere on the disk
Answer:
the longest time needed to read an arbitrary sector located anywhere on the disk is 2971.24 ms
Explanation:
Given the data in the question;
first we determine the rotational latency
Rotational latency = 60/(3600×2) = 0.008333 s = 8.33 ms
To get the longest time, lets assume the sector will be found at the last track.
hence we will access all the track, meaning that 127 transitions will be done;
so the track changing time = 127 × 15 = 1905 ms
also, we will look for the sectors, for every track rotations that will be done;
128 × 8.33 = 1066.24 ms
∴The Total Time = 1066.24 ms + 1905 ms
Total Time = 2971.24 ms
Therefore, the longest time needed to read an arbitrary sector located anywhere on the disk is 2971.24 ms
What does weathering do?
2. What does erosion do?
3. What is physical weathering?
4. what are 3 examples of physical weathering?
5. What is chemical weathering?
6. What are 2 examples of chemical weathering?
7. What is biological weathering?
8. What are 3 examples of biological weathering?
Answer
Weathering describes the breaking down or dissolving of rocks and minerals on the surface of the Earth. Water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering. Once a rock has been broken down, a process called erosion transports the bits of rock and mineral away.
Erosion is the geological process in which earthen materials are worn away and transported by natural forces such as wind or water. A similar process, weathering, breaks down or dissolves rock, but does not involve movement.
Physical weathering is caused by the effects of changing temperature on rocks, causing the rock to break apart. The process is sometimes assisted by water. ... Freeze-thaw occurs when water continually seeps into cracks, freezes and expands, eventually breaking the rock apart.
Swiftly moving water. Rapidly moving water can lift, for short periods of time, rocks from the stream bottom. ...
Ice wedging. Ice wedging causes many rocks to break. ...
Plant roots. Plant roots can grow in cracks.
the erosion or disintegration of rocks, building materials, etc., caused by chemical reactions (chiefly with water and substances dissolved in it) rather than by mechanical processes.
Carbonation. When you think of carbonation, think carbon! ...
Oxidation. Oxygen causes oxidation. ... or
Hydration. This isn't the hydration used in your body, but it's similar. ...
Biological weathering is weathering caused by plants and animals. Plants and animals release acid forming chemicals that cause weathering and also contribute to the breaking down of rocks and landforms. Chemical weathering is weathering caused by breaking down of rocks and landforms.
Burrowing animals like shrews, moles, earthworms, and even ants contribute to biological weathering. ...
When animals like birds forage for seeds and earthworms, they create holes and erode the upper surface of the soil, thus, contributes to weathering.
rabbits and other burrowing animals can burrow into a crack in a rock, making it bigger and splitting the rock. You may have seen weeds growing through cracks in the pavement.
Explanation:
Hope this helps you!!
What is responsible for the amount of current in a circuit?
Will mark as Brainliest!!!
Answer:
Voltage is required for there to be a current but resistance can effect the amount of current.
Answer:
the answer is voltage
Explanation:
we just finished this unit in class
If a car is traveling at a speed of 65 miles per hour, how can this be rewritten as a velocity?
Answer:
i.e 65 mph, and a direction, say "east'.
Explanation:
A 100 V battery is connected across a resistor and causes a current of 5mA to flow. Determine
the resistance of the resistor. If the voltage is now reduced to 25 V, what will be the new value
of the current flowing?
Answer:
R = 20000 ohms
I = 1.25 mA
Explanation:
From the question,
V = IR................... Equation 1
Where V = Voltage, I = Current, R = Resistance.
Make R the subject of the equation
R = V/I............... Equation 2
Given: V = 100 V, I = 5 mA = 0.005 A
Substitute into equation 2
R = 100/0.005
R = 20000 ohms.
If the Voltage is reduced to 25 V,
I = V/R.................. Equation 3
Given: V = 25 V, R = 20000 ohms.
Substitute these values into equation 3
I = 25/20000
I = 1.25 mA
A freight train car is moving at a constant speed with respect to the ground of Vcg. A man standing on a flatbed car throws a ball into the air and catches it as it falls. Relative to the flatbed car, the initial velocity of the ball is Vibc straight up. a. What are the magnitude and direction of the initial velocity of the ball as seen by a second man standing on the ground next to the track
Answer:
chiicken
Explanation:
Which of the following is NOT an event in track and field?
A: 110 meter hurdles
B: Dressage
C: Pole Vault
D: Discus
Answer:
B
Explanation:
Dressage is a horse racing sport.
does a paper pin float on honey or sink?
pls answer
Answer:
Float
Explanation:
Due to the viscosity of honey, honey is much denser than water. As pin's density compared to water is more, the pin sinks. But as compared to honey it's density is lower, so it floats.
Hope it would be useful to all of you...
Thank you
give 3 uses of mirrors in everyday life
Answer:
Putting on makeup lol
Driving
Magnification and Science
Photography
Explanation:
I did an extra one if the makeup one wasn't allowed hahah
Darcy is going to make raspberry jam for the county fair.
• Her recipe calls for exactly 55 raspberries per jar.
Darcy has 1,700 raspberries.
Answer:
She can make have 30 jars with raspberries in them with 50 left over.
Explanation:
1,700 divided by 55
30 equally
but 50 left over
This means that she can make have 30 jars with raspberries in them with 50 left over.
Dolphins emit clicks of sound for communication and echolocation. A marine biologist is monitoring a dolphin swimming in seawater where the speed of sound is 1522 m/s. When the dolphin is swimming directly away at 8.0 m/s, the marine biologist measures the number of clicks occurring per second to be at a frequency of 2500 Hz. What is the difference (in Hz) between this frequency and the number of clicks per second actually emitted by the dolphin
Answer:
13 hz
Explanation:
Speed of sound = 1522
Dolphin swims off at 8.0 = Cs
Frequency of clicks = Fo = 2500
Fo = fs(c/c+cs)
2500 = fs(1522/1522+8)
2500 = fs(1522/1530)
2500 = 0.99477fs
Fs = 2500/0.99477
= 2513.1
From here, we find the difference between this frequency and the number of clicks per second
= 2513.1 - 2500
= 13.1 hz
Approximately 13 Hz
When turning from your path onto a perpendicular path your speed
SHOULD BE at a STEADY
DRIVERS ED PLEASE HELP
Answer: 5-15MPH
Explanation: Trust me
Quia
Active
16:05:5
A plant root is an example of
Answer:A plant root is an example of an organ
Explanation:The main function of the root is to collect nutrients and water from the soil.
Answer:
hi sorry i just want points YOSHIII :3
Explanation:
A 15.8 kg child on a 1.85 m long swing is pulled back to a 37.80 angle. How much PE does she have?
Answer: 60.16J
Explanation:
The following information can be gotten from the question:
Mass, m = 15.8kg
Length, l = 1.85m
θ = 37.8°
g = 9.8m/s
Potential energy = mgh
= mgh(1 - cos θ)
= 15.8 × 9.8 × 1.85 × (1 - cos 37.8°)
= 286.454 × (1 - 0.79)
= 286.454 × 0.21
= 60.16J
Therefore, the potential energy is 60.16J.